From f5178fe3dd7bf74057932c33e1282c4f7d0a9c6f Mon Sep 17 00:00:00 2001
From: Chris Lew <clew@quicinc.com>
Date: Tue, 6 Aug 2019 15:59:19 -0700
Subject: [PATCH 1/2] dt-bindings: soc: qcom: Introduce Glink Probe bindings

The RPMSG over GLINK transport expects to be a subdev in a remote proc
node. This driver helps probe the glink transports when remote proc is
disabled.

Change-Id: I2b29ad88d347321434470c1d0db365bccc4f1e92
---
 bindings/soc/qcom/qcom,glink-probe.txt | 69 ++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 bindings/soc/qcom/qcom,glink-probe.txt

diff --git a/bindings/soc/qcom/qcom,glink-probe.txt b/bindings/soc/qcom/qcom,glink-probe.txt
new file mode 100644
index 000000000000..badb9f9bcd53
--- /dev/null
+++ b/bindings/soc/qcom/qcom,glink-probe.txt
@@ -0,0 +1,69 @@
+Qualcomm Technologies, Inc. GLINK Probe
+
+This binding describes the GLINK Probe driver, a device
+that initializes the GLINK edge pairs within the system.
+
+- compatible :
+	Usage: required
+	Value type: <stringlist>
+	Definition: must be "qcom,glink"
+
+= SUBNODES
+The GLINK probe node must contain subnodes that describes the
+edge-pairs. See qcom,glink.txt for details on how to describe them.
+
+In addition to the properties in qcom,glink.txt, The GLINK Probe driver
+requires the qcom,glink-label and transport type to be specified in the
+subnodes.
+
+- transport :
+	Usage: required
+	Value type: <stringlist>
+	Definition: must be "smem", "spss", or "spi"
+
+- qcom,glink-label :
+	Usage: required
+	Value type: <stringlist>
+	Definition: specifies the identifier of the remote proc of this edge.
+
+= GLINK_SSR
+The GLINK probe driver also initializes the GLINK_SSR channel for the edges
+that it brings up. The channel should be specified as a subnode to each edge. In
+addition to the properties in qcom,glink.txt to specify a channel device node,
+the qcom,notify-edges property must be defined.
+
+- qcom,notify-edges :
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: list of phandles that specify the subsystems this glink edge
+		    needs to receive ssr notifications about.
+
+= EXAMPLE
+qcom,glink {
+	compatible = "qcom,glink";
+	glink_modem: modem {
+		transport = "smem";
+		qcom,remote-pid = <0>;
+		mboxes = <&apcs_glb 8>;
+		mbox-names = "mpss_smem";
+		interrupts = <GIC_SPI 449 IRQ_TYPE_EDGE_RISING>;
+
+		qcom,modem_glink_ssr {
+			qcom,glink-channels = "glink_ssr";
+			qcom,notify-edges = <&glink_adsp>;
+		};
+	};
+
+	glink_adsp: adsp {
+		transport = "smem";
+		qcom,remote-pid = <2>;
+		mboxes = <&apcs_glb 4>;
+		mbox-names = "adsp_smem";
+		interrupts = <GIC_SPI 348 IRQ_TYPE_EDGE_RISING>;
+
+		qcom,modem_glink_ssr {
+			qcom,glink-channels = "glink_ssr";
+			qcom,notify-edges = <&glink_modem>;
+		};
+	};
+};

From 732211dd4d650abb9ebaacc1c449bc7974ff00c5 Mon Sep 17 00:00:00 2001
From: Chris Lew <clew@quicinc.com>
Date: Tue, 6 Aug 2019 16:00:00 -0700
Subject: [PATCH 2/2] dt-bindings: soc: qcom: Introduce Glink Pkt bindings

The RPMSG char driver requires clients to ioctl into a ctrl node to
create corresponding userspace char devices. Not all GLINK clients can
follow this standard. Add the GLINK PKT driver to create char devs from
boot time.

Change-Id: I363013b0cb99b8335b8d211ddd0116dfc95522ac
---
 bindings/soc/qcom/qcom,glink-pkt.txt | 40 ++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 bindings/soc/qcom/qcom,glink-pkt.txt

diff --git a/bindings/soc/qcom/qcom,glink-pkt.txt b/bindings/soc/qcom/qcom,glink-pkt.txt
new file mode 100644
index 000000000000..b5c660c808e0
--- /dev/null
+++ b/bindings/soc/qcom/qcom,glink-pkt.txt
@@ -0,0 +1,40 @@
+Qualcomm Technologies, Inc. G-Link Packet Driver (glinkpkt)
+
+[Root level node]
+Required properties:
+-compatible : should be "qcom,glinkpkt"
+
+[Second level nodes]
+qcom,glinkpkt-channel-names
+Required properties:
+-qcom,glinkpkt-transport : the glinkpkt transport layer
+-qcom,glinkpkt-edge : the remote subsystem name
+-qcom,glinkpkt-ch-name : the glink channel name
+-qcom,glinkpkt-dev-name : the glinkpkt device name
+
+Example:
+
+         qcom,glink_pkt {
+                 compatible = "qcom,glinkpkt";
+
+                 qcom,glinkpkt-at-mdm0 {
+                         qcom,glinkpkt-transport = "smd_trans";
+                         qcom,glinkpkt-edge = "mpss";
+                         qcom,glinkpkt-ch-name = "DS";
+                         qcom,glinkpkt-dev-name = "at_mdm0";
+                 };
+
+                 qcom,glinkpkt-loopback-cntl {
+                         qcom,glinkpkt-transport = "lloop";
+                         qcom,glinkpkt-edge = "local";
+                         qcom,glinkpkt-ch-name = "LOCAL_LOOPBACK_CLNT";
+                         qcom,glinkpkt-dev-name = "glink_pkt_loopback_ctrl";
+                 };
+
+                 qcom,glinkpkt-loopback-data {
+                         qcom,glinkpkt-transport = "lloop";
+                         qcom,glinkpkt-edge = "local";
+                         qcom,glinkpkt-ch-name = "glink_pkt_lloop_CLNT";
+                         qcom,glinkpkt-dev-name = "glink_pkt_loopback";
+                 };
+         };